True Frogs

Livingston County, Michigan

Wood Frog (Rana Sylvatica). Possible species.

Spring Frog or Leopard Frog. Rana Virescens

Mori Pt

Randers Fjord

Chorus, Livingston County, Michigan

Western Bullfrog (Rana Aurora). Desirable Species.

Randers Fjord

Reticulum shading patternsExamples include (a) dark state, Rana kauffeldi (YPM 14143); (b) light state, R. sphenocephala (YPM 14097); (c) R. kauffeldi yellow variant (YPM 13767); (d) R. kauffeldi green variant (YPM 14025). Photographs taken by E. Kiviat (a), M. Cram (b), and BRC (c, d). doi:10.1371/journal.pone.0108213.g004From Feinberg JA, Newman CE, Watkins-Colwell GJ, Schlesinger MD, Zarate B, et al. (2014) Cryptic Diversity in Metropolis: Confirmation of a New Leopard Frog Species (Anura: Ranidae) from New York City and Surrounding Atlantic Coast Regions. PLoS ONE 9(10): e108213. doi:10.1371/journal.pone.0108213 Available online at: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0108213#pone-0108213-g004

Western Bullfrog. Rana aurora

Randers Fjord

Leopard frog distributions in the Northeast and mid-Atlantic USLeft: currently recognized IUCN (2012) range maps for R. pipiens (green) and R. sphenocephala (red) with areas of potential overlap (hatched). Right: newly interpreted distributions for all three leopard frog species including R. kauffeldi. Symbols indicate known R. kauffeldi populations and purple shading depicts areas where our field work has confirmed the occurrence of R. kauffeldi. Yellow shading indicates areas of less intensive examination and sampling; R. kauffeldi may occur in these areas based on habitat and proximity to known populations. Potential sympatry is also possible in the yellow shaded areas, with R. sphenocephala (from Long Island southward), or R. pipiens (north and west of Long Island). The type locality for R. kauffeldi is indicated by an arrow. doi:10.1371/journal.pone.0108213.g001From Feinberg JA, Newman CE, Watkins-Colwell GJ, Schlesinger MD, Zarate B, et al. (2014) Cryptic Diversity in Metropolis: Confirmation of a New Leopard Frog Species (Anura: Ranidae) from New York City and Surrounding Atlantic Coast Regions. PLoS ONE 9(10): e108213. doi:10.1371/journal.pone.0108213. Available online at: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0108213#pone-0108213-g001

Western Bullfrog. Rana aurora

Lille Vildmose, Denmark

Rana kauffeldiPhotograph of Rana kauffeldi sp. nov. holotype (YPM 13217). Male frog presented preserved: (c) dorsal viewFigure 2c From Feinberg JA, Newman CE, Watkins-Colwell GJ, Schlesinger MD, Zarate B, et al. (2014) Cryptic Diversity in Metropolis: Confirmation of a New Leopard Frog Species (Anura: Ranidae) from New York City and Surrounding Atlantic Coast Regions. PLoS ONE 9(10): e108213. doi:10.1371/journal.pone.0108213 Available online at http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0108213#pone-0108213-g002

Leopard Frogs. Pectoral Embrace.

Havbyrd, Ringsted

Rana kauffeldiPhotograph of Rana kauffeldi sp. nov. holotype (YPM 13217). Male frog presented preserved: (d) ventral viewFigure 2d From Feinberg JA, Newman CE, Watkins-Colwell GJ, Schlesinger MD, Zarate B, et al. (2014) Cryptic Diversity in Metropolis: Confirmation of a New Leopard Frog Species (Anura: Ranidae) from New York City and Surrounding Atlantic Coast Regions. PLoS ONE 9(10): e108213. doi:10.1371/journal.pone.0108213 Available online at http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0108213#pone-0108213-g002